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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

WU9I callsign genealogy

Currently held by VAN ABBEMA, CLARENCE

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by WU9I's current licensee, walking backwards.

  1. AG5CMcancelled· E
    Ferrier, Dale ATXgranted 2016-02-02cancelled 2018-07-27
  2. KG5LIGcancelled· E
    Ferrier, Dale ATXgranted 2016-02-02cancelled 2016-02-09

Successor callsigns

Callsigns held now by people who previously held WU9I.

  1. W9YWactive· E
    Henderson, Thomas BINgranted 2026-04-08

All historical holders

Every license row we've seen with the callsign WU9I, oldest first.

  • VAN ABBEMA, CLARENCE MO
    2000-07-28 → cancelled 2012-08-08
  • Henderson, Thomas B IN
    2014-03-18 → cancelled 2016-07-06
  • Ferrier, Dale A TX
    2018-07-27 active